void Circle(int x, int y, int r)
{
int i, j, x1, y1, r, p, a ;
x1 = 0 ;
y1 = r ;
p = 3 - 2 * r ;
while ( x1 < y1 )
{
plotcircle ( x, y, x1, y1 ) ;
if ( p < 0 )
p = p + 4 * x1 + 6 ;
else
{
p = p + 4 * ( x1 - y1 ) + 10 ;
y1 = y1 - 1 ;
}
x1 = x1 + 1 ;
}
if ( x1 == y1 )
plotcircle ( x, y, x1, y1 ) ;
}
void plotcircle ( int x, int y, int x1, int y1 )
{
WinDrawPixel ( x + x1, y + y1 ) ;
WinDrawPixel ( x - x1, y + y1 ) ;
WinDrawPixel ( x + x1, y - y1 ) ;
WinDrawPixel ( x - x1, y - y1 ) ;
WinDrawPixel ( x + y1, y + x1 ) ;
WinDrawPixel ( x - y1, y + x1 ) ;
WinDrawPixel ( x + y1, y - x1 ) ;
WinDrawPixel ( x - y1, y - x1 ) ;
}
Manish Jaggi
Developer
Geovision Inc
H-13 Chittranjan marg
phone 91-141-364129 , 373696 , 653251
Fax 317125
_________________________________________________________________
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